MCQOPTIONS
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| 1. |
Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is __________ Nm3 . |
| A. | 0.5 |
| B. | 1 |
| C. | 2 |
| D. | 2.5 |
| Answer» E. | |